Create a Smart Contract on WAX blockchain including NFT RNG

Name: Create a Smart Contract on WAX blockchain including NFT RNG
Rating: 4.0 (105 reviews)

Learn how to interact with blockchain Oracles to create RNG and also create NFT's on WAX with smart contracts in C++

Created byIcaro Lavrador

Last updated 7/2021

English

What you'll learn

How to setup a environment in Docker to develop Smart Contract on WAX
How to create a basic Smart Contract on WAX
How to interact with Blockchain Oracles on WAX to generate random numbers
How to create NFT on the WAX blockchain

Course content

10 sections • 55 lectures • 5h 6m total length

Quick course overview, documentation and how to find help3:16

Understand the tool available to us and the Wax blockchain fork from EOS4:10
Installing Docker images for Development and WAX Contract Development Toolkit10:00
Learning how to use the Docker images (start, stop, attach, list)4:20
Learn how to manage docker images and containers by starting, stopping, attaching, listing, restarting, and deleting containers, understanding the difference between deleting a container and an image, and viewing logs.
Using cleos to connect to the WAX test network3:50
Starting Keosd and Nodeos and have our local WAX blockchain running locally5:57

Overview in how to create a smart contract on WAX/EOS4:04
How the Resources work on the WAX blockchain (CPU, NET, RAM)7:25
Discover how the WAX blockchain charges resources—cpu, net, and ram—through staking, usage, and memory purchases, with daily resets and potential refunds upon sale.
Creating our first smart contract on WAX and understanding the files structure6:26
create your first smart contract on wax by initializing a wx project, organizing files in header and source with a build folder, and learning how cmake compiles the code.
Compiling the smart contract using cmake/make to create the ABI and WASM files4:57
Differences between Primary Account, Smart Contract Account, Customer Account14:01
Deploying our first smart contract to the Wax local blockchain6:35

Section introduction, deploying smart contract to the Wax Testnet1:10
Create an account, obtain fake WX, stake CPU, and run with fake resources locally, then deploy the contract to the Wax testnet and apply to the actual test network.
Creating an account on the Wax Testnet and getting some FREE (Fake) Wax2:41
Creating a wallet on the Testnet, buying RAM and staking CPU and NET9:34
Deploying our contract to the Wax Testnet5:04
Sending actions to the Wax Blockchain Testnet and checking on the block explorer9:29

What is a Blockchain Oracle and how can it help us to create our RNG Action3:07
Creating our new Random Number Generator (RNG) project2:37
Understand the HPP file and adding a new function to our contract7:32
Understand the CPP file and adding a new function to our contract4:35
Compiling our new Contract using cmake and make to get our wasm and abi files4:16
Creating our first table on the WAX network7:43
Creating our type definition for the WAX table3:14
Create a type definition for the WAX table and a mood index table, applying proper naming rules and declaring a variable to access table data for contract initialization.
Initializing our contract and our table3:02
Initialize the wax smart contract by adding a default constructor for the table and customers, passing receiver, code, and data values, then compile to verify setup.
Compiling the contract and fixing some small mistakes3:00
Creating a new account with staked WAX for CPU and NET and buying some run5:22
Checking the account details and deploying our new contract to the Wax Testnet5:41
Getting the table values on the Wax Testnet using cleos and Bloks.io2:57
Discover how to fetch Wax testnet table data using cleos and Bloks.io, querying a contract's table by account, scope, and table name, with hands-on steps and empty-table checks.

Adding actions to our new Smart Contract6:03
Declare new actions in the smart contract header and build action wrappers for get_random and receive_range, with proper names and parameters. Prepare for implementation in the next class.
Implementing the function to broadcast the request to the blockchain oracle9:27
Implementing a function to receive the Oracle response14:54
Compiling the code and applying small fixes7:53
Compiling the code and applying small fixes4:25
Interacting with the smart contract on WAX to get a random number and check9:05

Creating NFT using Simple Assets6:26
Create nfts using simple assets on wax with a smart contract. Learn to mint, transfer, and manage assets and their data, and understand memory and ram payment.
Creating an Action to create an NFT using Simple Assets9:46
Sending the action to Simple Assets to create our new NFTs2:41
Compiling and deploying the contract to create new NFTs4:55
Restarting the docker container and recreating a wallet if needed3:08
Restart the docker container, attach to it, ensure the wallet is open and unlocked, recreate the wallet with imported keys if needed, then push the create action to your contract.
Creating and reading the NFT from the WAX network3:21
Deploy a contract on the WAX network, push actions to create an NFT, and read its data from the assets table to display owner, category, and image in a UI.
Understand Account, Scope and the table name on our get table command3:48

Create our React app to interact with our contract2:29
A quick react overview and some clean up on the code3:26
Importing WaxJS from WaxIo2:17
Create a login button and function2:29
Getting the Wax wallet name and public key6:08
Initialising the Wax connection with the component using useEffect hook2:49
Learn to initialize a Wax connection in a component using the useEffect hook, handling scope, login, and cleanup to start the app reliably.
Displaying the wallet name and public key on the screen using the useState5:29
Creating a auto login for users already registered4:07
Adding a new component with user actions8:14
Refactoring the code to use Wax as a state and run useEffect when it is set3:44
More coming really soon...0:21

Requirements

Intermediary knowledge on any programing language
Basic Programming knowledge in C or C++ is an advantage but not a must
Docker installed and configured (info in how to do it on my youtube channel) if need

Description

Note: This course is on PRE-RELEASE more classes are been added weekly until the full course is finished, I expect the full course to have something between 6 and 8 hours.

What is WAX? WAX stands for Worldwide Asset eXchange and is a blockchain specifically made for trading virtual items such as rare and collectible items in video games and virtual worlds.

WAX is fully compatible with EOS smart contracts and offers free blockchain accounts and cheaper fees. This course will provide you with an overview of how to deploy your EOS/WAX dApps to our local test network, them to the WAX Testnet where we will interact with other contracts such as a blockchain Oracle for Random number generator and the contact for Simple Assets to create NFTs and finally after that to the WAX mainnet.

This course will use C++ to write the contract, contracts on the WAX network can be written in any language that compiles to WebAssembler, however, I decide to use C++ as it is the language with more support at the moment.

Even the course has been in C++ if you have any understanding of programming you should be able to follow the course along without problems, I take the student step by step while writing and reading the contract, explaining every command and comparing it to other languages more common such as JavaScript or C# so don't be intimidated by it, also I'm always around helping students and answering questions.

Who this course is for:

Developers that want to start to develop smart contracts
Developers that want to start develop to the WAX blockchain

Create a Smart Contract on WAX blockchain including NFT RNG

What you'll learn

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Course content

Course overview1 lecture • 3min

Using docker for development in WAX5 lectures • 28min

Setting up our local environment on the WAX blockchain1 lecture • 7min

How to create a Wax wallet, open and unlock and import private keys1 lecture • 16min

Smart Contract Development on Wax using the CDT (Contract Development Toolkit)6 lectures • 43min

Deploying and testing our project on the Wax Testnet5 lectures • 28min

Blockchain Oracles and Random Number Generator (RNG)12 lectures • 53min

Adding Actions to our blockchain smart contract6 lectures • 52min

NFT, how to create new NETs on WAX blockchain using simple assets smart contract7 lectures • 34min

Interacting with a Wax smart contract using React and WasJS11 lectures • 42min

Requirements

Description

Who this course is for: